============================================================================
Ubuntu Security Notice USN-2182-1
April 28, 2014

qemu, qemu-kvm vulnerabilities
============================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS
- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in QEMU.

Software Description:
- qemu: Machine emulator and virtualizer
- qemu-kvm: Machine emulator and virtualizer

Details:

Michael S. Tsirkin discovered that QEMU incorrectly handled vmxnet3
devices. A local guest could possibly use this issue to cause a denial of
service, or possibly execute arbitrary code on the host. This issue only
applied to Ubuntu 13.10 and Ubuntu 14.04 LTS. (CVE-2013-4544)

Michael S. Tsirkin discovered that QEMU incorrectly handled virtio-net
MAC addresses. A local guest could possibly use this issue to cause a
denial of service, or possibly execute arbitrary code on the host.
(CVE-2014-0150)

Beno=C3=AEt Canet discovered that QEMU incorrectly handled SMART self-tests. A
local guest could possibly use this issue to cause a denial of service, or
possibly execute arbitrary code on the host. (CVE-2014-2894)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
  qemu-system                     2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-aarch64             2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-arm                 2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-mips                2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-misc                2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-ppc                 2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-sparc               2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-x86                 2.0.0~rc1+dfsg-0ubuntu3.1

Ubuntu 13.10:
  qemu-system                     1.5.0+dfsg-3ubuntu5.4
  qemu-system-arm                 1.5.0+dfsg-3ubuntu5.4
  qemu-system-mips                1.5.0+dfsg-3ubuntu5.4
  qemu-system-misc                1.5.0+dfsg-3ubuntu5.4
  qemu-system-ppc                 1.5.0+dfsg-3ubuntu5.4
  qemu-system-sparc               1.5.0+dfsg-3ubuntu5.4
  qemu-system-x86                 1.5.0+dfsg-3ubuntu5.4

Ubuntu 12.10:
  qemu-kvm                        1.2.0+noroms-0ubuntu2.12.10.7

Ubuntu 12.04 LTS:
  qemu-kvm                        1.0+noroms-0ubuntu14.14

Ubuntu 10.04 LTS:
  qemu-kvm                        0.12.3+noroms-0ubuntu9.22

After a standard system update you need to reboot your computer to make all
the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-2182-1
  CVE-2013-4544, CVE-2014-0150, CVE-2014-2894

Package Information:
  https://launchpad.net/ubuntu/+source/qemu/2.0.0~rc1+dfsg-0ubuntu3.1
  https://launchpad.net/ubuntu/+source/qemu/1.5.0+dfsg-3ubuntu5.4
  https://launchpad.net/ubuntu/+source/qemu-kvm/1.2.0+noroms-0ubuntu2.12.10.7
  https://launchpad.net/ubuntu/+source/qemu-kvm/1.0+noroms-0ubuntu14.14
  https://launchpad.net/ubuntu/+source/qemu-kvm/0.12.3+noroms-0ubuntu9.22